| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | Automatic Calculating Machine |
| Gottfried Leibnez | Calculus |
| Charles Xavier Thomas | Arithmometer |
| Joseph Jacquard | Jacquard's Loom |
| Charles Babbage | 1st Modern Computing Device |
| Georg Scheutz | The Swedish Calculating Machine |
| Augusta Ada Bryon | 1st Female Computer Scientist |
| Herman Hollerith | Automatic Census Bureau |
| Thomas Watson, Jr. | w/Hollerith Started Co. that became IBM |
| Alan Turing | Turing Machine |
| George Stibitz | Model K Digital Calculator |
| John Atanasoff | Electronic Calculating Machine |
| Dr. Howard Aiken | Mark I Computer for IBM |
| Dr. John Mauchly & Presper Eckert | Eniac |
| John Bardeen, William Shockley, & Walter Brittain | Transistors |
| John von Neumann | Stored Program Concept |
| Dr. Daniel Slotnick | Illiac IV Computer 1st Super Computer |
| Robert Noyce & Jack Kilby | 1st Intigrated Circuit |
| Alan Kay | Interface for Flex Computer |
| Grace Hopper | Mother of Cobol |
| Ted Hoff | Microprocessor |
| Ed Roberts | Altair Computer |
| Donald Knuth | Tex Typesetting System |
| Steve Jobs & Steve Wozniak | Apple |
| Bill Gates & Paul Allen | Microsoft |
| Steve Case | AOL |
| Lawrence Ellison | Oracle |
